Question

find the value of X^3+Y^3 if X=1/3-2root2 and y=1/3+2root2
please answer fast!

Answer 1

$Given \\ x = \frac{1}{3} - 2 \sqrt{2} \\ y = \frac{1}{3} + 2 \sqrt{2}$
$Therefore \\ \\ {x}^{3} + {y}^{3} = (\frac{1}{3 } - 2 \sqrt{2} )^{3} + ( \frac{1}{3} + 2 \sqrt{2})^{3}$